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<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>简单的边框</title>
    <style>
        /* a {
            display: block;
            width: 200px;
            height: 40px;
            background-color: #55585a;
            font-size: 14px;
            padding-left: 30px;
            text-decoration: none;
            color: ivory;
            line-height: 40px;
        }

        a:hover {
            background-color: #ff6700;
        } */
        * {
            margin: 0;
            padding: 0;
        }

        li {
            list-style: none;
        }

        .box {
            width: 300px;
            height: 230px;
            border: 1px solid red;
            margin: 100px auto;
        }

        .box h3 {
            color: red;
            height: 32px;
            border-bottom: 1px dotted red;
            font-size: 14px;
            font-weight: 700;
            line-height: 32px;
            padding-left: 20px;
        }

        .box ul li a {
            font-size: 14px;
            color: red;
            text-decoration: none;
        }

        .box ul li a:hover {
            text-decoration: underline;
            color: royalblue;
        }

        .box ul li {
            height: 30px;
            line-height: 30px;
            padding-left: 30px;
        }

        .box ul {
            padding-top: 10px;
        }
    </style>
</head>

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